2 * netifd - network interface daemon
3 * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
4 * Copyright (C) 2012 Steven Barth <steven@midlink.org>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2
8 * as published by the Free Software Foundation
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
20 #include <arpa/inet.h>
21 #include <netinet/in.h>
25 #include "interface.h"
26 #include "interface-ip.h"
47 static const struct blobmsg_policy route_attr
[__ROUTE_MAX
] = {
48 [ROUTE_INTERFACE
] = { .name
= "interface", .type
= BLOBMSG_TYPE_STRING
},
49 [ROUTE_TARGET
] = { .name
= "target", .type
= BLOBMSG_TYPE_STRING
},
50 [ROUTE_MASK
] = { .name
= "netmask", .type
= BLOBMSG_TYPE_STRING
},
51 [ROUTE_GATEWAY
] = { .name
= "gateway", .type
= BLOBMSG_TYPE_STRING
},
52 [ROUTE_METRIC
] = { .name
= "metric", .type
= BLOBMSG_TYPE_INT32
},
53 [ROUTE_MTU
] = { .name
= "mtu", .type
= BLOBMSG_TYPE_INT32
},
54 [ROUTE_TABLE
] = { .name
= "table", .type
= BLOBMSG_TYPE_STRING
},
55 [ROUTE_VALID
] = { .name
= "valid", .type
= BLOBMSG_TYPE_INT32
},
56 [ROUTE_SOURCE
] = { .name
= "source", .type
= BLOBMSG_TYPE_STRING
},
57 [ROUTE_ONLINK
] = { .name
= "onlink", .type
= BLOBMSG_TYPE_BOOL
},
58 [ROUTE_TYPE
] = { .name
= "type", .type
= BLOBMSG_TYPE_STRING
},
59 [ROUTE_PROTO
] = { .name
= "proto", .type
= BLOBMSG_TYPE_STRING
},
62 const struct uci_blob_param_list route_attr_list
= {
63 .n_params
= __ROUTE_MAX
,
68 struct list_head prefixes
= LIST_HEAD_INIT(prefixes
);
69 static struct device_prefix
*ula_prefix
= NULL
;
70 static struct uloop_timeout valid_until_timeout
;
74 clear_if_addr(union if_addr
*a
, int mask
)
76 int m_bytes
= (mask
+ 7) / 8;
77 uint8_t m_clear
= (1 << (m_bytes
* 8 - mask
)) - 1;
78 uint8_t *p
= (uint8_t *) a
;
80 if (m_bytes
< sizeof(*a
))
81 memset(p
+ m_bytes
, 0, sizeof(*a
) - m_bytes
);
83 p
[m_bytes
- 1] &= ~m_clear
;
87 match_if_addr(union if_addr
*a1
, union if_addr
*a2
, int mask
)
89 union if_addr
*p1
, *p2
;
91 p1
= alloca(sizeof(*a1
));
92 p2
= alloca(sizeof(*a2
));
94 memcpy(p1
, a1
, sizeof(*a1
));
95 clear_if_addr(p1
, mask
);
96 memcpy(p2
, a2
, sizeof(*a2
));
97 clear_if_addr(p2
, mask
);
99 return !memcmp(p1
, p2
, sizeof(*p1
));
102 static int set_ip_source_policy(bool add
, bool v6
, unsigned int priority
,
103 const union if_addr
*addr
, uint8_t mask
, unsigned int table
,
104 struct interface
*in_iface
, const char *action
, bool src
)
106 struct iprule rule
= {
107 .flags
= IPRULE_PRIORITY
,
113 rule
.flags
|= IPRULE_SRC
;
114 rule
.src_addr
= *addr
;
115 rule
.src_mask
= mask
;
117 rule
.flags
|= IPRULE_DEST
;
118 rule
.dest_addr
= *addr
;
119 rule
.dest_mask
= mask
;
124 rule
.flags
|= IPRULE_LOOKUP
;
130 rule
.flags
|= IPRULE_ACTION
;
131 system_resolve_iprule_action(action
, &rule
.action
);
134 if (in_iface
&& in_iface
->l3_dev
.dev
) {
135 rule
.flags
|= IPRULE_IN
;
136 strcpy(rule
.in_dev
, in_iface
->l3_dev
.dev
->ifname
);
139 rule
.flags
|= (v6
) ? IPRULE_INET6
: IPRULE_INET4
;
141 return (add
) ? system_add_iprule(&rule
) : system_del_iprule(&rule
);
144 static int set_ip_lo_policy(bool add
, bool v6
, struct interface
*iface
)
146 struct iprule rule
= {
147 .flags
= IPRULE_IN
| IPRULE_LOOKUP
| IPRULE_PRIORITY
,
148 .priority
= IPRULE_PRIORITY_NW
+ iface
->l3_dev
.dev
->ifindex
,
149 .lookup
= (v6
) ? iface
->ip6table
: iface
->ip4table
,
156 rule
.flags
|= (v6
) ? IPRULE_INET6
: IPRULE_INET4
;
158 return (add
) ? system_add_iprule(&rule
) : system_del_iprule(&rule
);
162 __find_ip_addr_target(struct interface_ip_settings
*ip
, union if_addr
*a
, bool v6
)
164 struct device_addr
*addr
;
166 vlist_for_each_element(&ip
->addr
, addr
, node
) {
170 if (v6
!= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
))
173 // Handle offlink addresses correctly
174 unsigned int mask
= addr
->mask
;
175 if ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
&&
176 (addr
->flags
& DEVADDR_OFFLINK
))
179 if (!match_if_addr(&addr
->addr
, a
, mask
))
189 __find_ip_route_target(struct interface_ip_settings
*ip
, union if_addr
*a
,
190 bool v6
, struct device_route
**res
)
192 struct device_route
*route
;
194 vlist_for_each_element(&ip
->route
, route
, node
) {
198 if (v6
!= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
))
201 if (!match_if_addr(&route
->addr
, a
, route
->mask
))
204 if (route
->flags
& DEVROUTE_TABLE
)
207 if (!*res
|| route
->mask
> (*res
)->mask
)
213 interface_ip_find_addr_target(struct interface
*iface
, union if_addr
*a
, bool v6
)
215 return __find_ip_addr_target(&iface
->proto_ip
, a
, v6
) ||
216 __find_ip_addr_target(&iface
->config_ip
, a
, v6
);
220 interface_ip_find_route_target(struct interface
*iface
, union if_addr
*a
,
221 bool v6
, struct device_route
**route
)
223 __find_ip_route_target(&iface
->proto_ip
, a
, v6
, route
);
224 __find_ip_route_target(&iface
->config_ip
, a
, v6
, route
);
228 interface_ip_add_target_route(union if_addr
*addr
, bool v6
, struct interface
*iface
)
230 struct device_route
*route
, *r_next
= NULL
;
231 bool defaultroute_target
= false;
232 union if_addr addr_zero
;
233 int addrsize
= v6
? sizeof(addr
->in6
) : sizeof(addr
->in
);
235 memset(&addr_zero
, 0, sizeof(addr_zero
));
236 if (memcmp(&addr_zero
, addr
, addrsize
) == 0)
237 defaultroute_target
= true;
240 /* look for locally addressable target first */
241 if (interface_ip_find_addr_target(iface
, addr
, v6
))
244 /* do not stop at the first route, let the lookup compare
245 * masks to find the best match */
246 interface_ip_find_route_target(iface
, addr
, v6
, &r_next
);
248 vlist_for_each_element(&interfaces
, iface
, node
) {
249 /* look for locally addressable target first */
250 if (interface_ip_find_addr_target(iface
, addr
, v6
))
253 /* do not stop at the first route, let the lookup compare
254 * masks to find the best match */
255 interface_ip_find_route_target(iface
, addr
, v6
, &r_next
);
262 iface
= r_next
->iface
;
263 if (defaultroute_target
)
266 route
= calloc(1, sizeof(*route
));
270 route
->flags
= v6
? DEVADDR_INET6
: DEVADDR_INET4
;
271 route
->mask
= v6
? 128 : 32;
272 memcpy(&route
->addr
, addr
, addrsize
);
273 memcpy(&route
->nexthop
, &r_next
->nexthop
, sizeof(route
->nexthop
));
274 route
->mtu
= r_next
->mtu
;
275 route
->metric
= r_next
->metric
;
276 route
->table
= r_next
->table
;
277 route
->iface
= iface
;
278 vlist_add(&iface
->host_routes
, &route
->node
, route
);
284 interface_set_route_info(struct interface
*iface
, struct device_route
*route
)
286 bool v6
= ((route
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
);
291 if (!(route
->flags
& DEVROUTE_METRIC
))
292 route
->metric
= iface
->metric
;
294 if (!(route
->flags
& DEVROUTE_TABLE
)) {
295 route
->table
= (v6
) ? iface
->ip6table
: iface
->ip4table
;
297 route
->flags
|= DEVROUTE_SRCTABLE
;
302 interface_ip_add_route(struct interface
*iface
, struct blob_attr
*attr
, bool v6
)
304 struct interface_ip_settings
*ip
;
305 struct blob_attr
*tb
[__ROUTE_MAX
], *cur
;
306 struct device_route
*route
;
307 int af
= v6
? AF_INET6
: AF_INET
;
309 blobmsg_parse(route_attr
, __ROUTE_MAX
, tb
, blobmsg_data(attr
), blobmsg_data_len(attr
));
312 if ((cur
= tb
[ROUTE_INTERFACE
]) == NULL
)
315 iface
= vlist_find(&interfaces
, blobmsg_data(cur
), iface
, node
);
319 ip
= &iface
->config_ip
;
321 ip
= &iface
->proto_ip
;
324 route
= calloc(1, sizeof(*route
));
328 route
->flags
= v6
? DEVADDR_INET6
: DEVADDR_INET4
;
329 route
->mask
= v6
? 128 : 32;
330 if ((cur
= tb
[ROUTE_MASK
]) != NULL
) {
331 route
->mask
= parse_netmask_string(blobmsg_data(cur
), v6
);
332 if (route
->mask
> (v6
? 128 : 32))
336 if ((cur
= tb
[ROUTE_TARGET
]) != NULL
) {
337 if (!parse_ip_and_netmask(af
, blobmsg_data(cur
), &route
->addr
, &route
->mask
)) {
338 DPRINTF("Failed to parse route target: %s\n", (char *) blobmsg_data(cur
));
343 if ((cur
= tb
[ROUTE_GATEWAY
]) != NULL
) {
344 if (!inet_pton(af
, blobmsg_data(cur
), &route
->nexthop
)) {
345 DPRINTF("Failed to parse route gateway: %s\n", (char *) blobmsg_data(cur
));
350 if ((cur
= tb
[ROUTE_METRIC
]) != NULL
) {
351 route
->metric
= blobmsg_get_u32(cur
);
352 route
->flags
|= DEVROUTE_METRIC
;
355 if ((cur
= tb
[ROUTE_MTU
]) != NULL
) {
356 route
->mtu
= blobmsg_get_u32(cur
);
357 route
->flags
|= DEVROUTE_MTU
;
360 // Use source-based routing
361 if ((cur
= tb
[ROUTE_SOURCE
]) != NULL
) {
362 char *saveptr
, *source
= alloca(blobmsg_data_len(cur
));
363 memcpy(source
, blobmsg_data(cur
), blobmsg_data_len(cur
));
365 const char *addr
= strtok_r(source
, "/", &saveptr
);
366 const char *mask
= strtok_r(NULL
, "/", &saveptr
);
368 if (!addr
|| inet_pton(af
, addr
, &route
->source
) < 1) {
369 DPRINTF("Failed to parse route source: %s\n", addr
? addr
: "NULL");
373 route
->sourcemask
= (mask
) ? atoi(mask
) : ((af
== AF_INET6
) ? 128 : 32);
376 if ((cur
= tb
[ROUTE_ONLINK
]) != NULL
&& blobmsg_get_bool(cur
))
377 route
->flags
|= DEVROUTE_ONLINK
;
379 if ((cur
= tb
[ROUTE_TABLE
]) != NULL
) {
380 if (!system_resolve_rt_table(blobmsg_data(cur
), &route
->table
)) {
381 DPRINTF("Failed to resolve routing table: %s\n", (char *) blobmsg_data(cur
));
385 /* only set the table flag if not using the main (default) table */
386 if (system_is_default_rt_table(route
->table
))
390 route
->flags
|= DEVROUTE_TABLE
;
393 if ((cur
= tb
[ROUTE_VALID
]) != NULL
) {
394 int64_t valid
= blobmsg_get_u32(cur
);
395 int64_t valid_until
= valid
+ (int64_t)system_get_rtime();
396 if (valid_until
<= LONG_MAX
&& valid
!= 0xffffffffLL
) // Catch overflow
397 route
->valid_until
= valid_until
;
400 if ((cur
= tb
[ROUTE_TYPE
]) != NULL
) {
401 if (!system_resolve_rt_type(blobmsg_data(cur
), &route
->type
)) {
402 DPRINTF("Failed to resolve routing type: %s\n", (char *) blobmsg_data(cur
));
405 route
->flags
|= DEVROUTE_TYPE
;
408 if ((cur
= tb
[ROUTE_PROTO
]) != NULL
) {
409 if (!system_resolve_rt_proto(blobmsg_data(cur
), &route
->proto
)) {
410 DPRINTF("Failed to resolve proto type: %s\n", (char *) blobmsg_data(cur
));
413 route
->flags
|= DEVROUTE_PROTO
;
416 interface_set_route_info(iface
, route
);
417 vlist_add(&ip
->route
, &route
->node
, route
);
425 addr_cmp(const void *k1
, const void *k2
, void *ptr
)
427 return memcmp(k1
, k2
, sizeof(struct device_addr
) -
428 offsetof(struct device_addr
, flags
));
432 route_cmp(const void *k1
, const void *k2
, void *ptr
)
434 const struct device_route
*r1
= k1
, *r2
= k2
;
436 if (r1
->mask
!= r2
->mask
)
437 return r2
->mask
- r1
->mask
;
439 if (r1
->metric
!= r2
->metric
)
440 return r1
->metric
- r2
->metric
;
442 if (r1
->flags
!= r2
->flags
)
443 return r2
->flags
- r1
->flags
;
445 if (r1
->sourcemask
!= r2
->sourcemask
)
446 return r1
->sourcemask
- r2
->sourcemask
;
448 if (r1
->table
!= r2
->table
)
449 return r1
->table
- r2
->table
;
451 int maskcmp
= memcmp(&r1
->source
, &r2
->source
, sizeof(r1
->source
));
455 return memcmp(&r1
->addr
, &r2
->addr
, sizeof(r1
->addr
));
459 prefix_cmp(const void *k1
, const void *k2
, void *ptr
)
461 return memcmp(k1
, k2
, offsetof(struct device_prefix
, pclass
) -
462 offsetof(struct device_prefix
, addr
));
466 interface_handle_subnet_route(struct interface
*iface
, struct device_addr
*addr
, bool add
)
468 struct device
*dev
= iface
->l3_dev
.dev
;
469 struct device_route
*r
= &addr
->subnet
;
471 if (addr
->flags
& DEVADDR_OFFLINK
)
475 if (!addr
->subnet
.iface
)
478 system_del_route(dev
, r
);
479 memset(r
, 0, sizeof(*r
));
484 r
->flags
= addr
->flags
;
485 r
->mask
= addr
->mask
;
486 memcpy(&r
->addr
, &addr
->addr
, sizeof(r
->addr
));
487 clear_if_addr(&r
->addr
, r
->mask
);
489 if (!system_resolve_rt_proto("kernel", &r
->proto
))
492 r
->flags
|= DEVROUTE_PROTO
;
493 system_del_route(dev
, r
);
495 r
->flags
&= ~DEVROUTE_PROTO
;
496 interface_set_route_info(iface
, r
);
498 system_add_route(dev
, r
);
502 interface_add_addr_rules(struct device_addr
*addr
, bool enabled
)
504 bool v6
= (addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
;
506 set_ip_source_policy(enabled
, v6
, IPRULE_PRIORITY_ADDR
, &addr
->addr
,
507 (v6
) ? 128 : 32, addr
->policy_table
, NULL
, NULL
,
509 set_ip_source_policy(enabled
, v6
, IPRULE_PRIORITY_ADDR_MASK
,
510 &addr
->addr
, addr
->mask
, addr
->policy_table
, NULL
,
515 interface_update_proto_addr(struct vlist_tree
*tree
,
516 struct vlist_node
*node_new
,
517 struct vlist_node
*node_old
)
519 struct interface_ip_settings
*ip
;
520 struct interface
*iface
;
522 struct device_addr
*a_new
= NULL
, *a_old
= NULL
;
523 bool replace
= false;
527 ip
= container_of(tree
, struct interface_ip_settings
, addr
);
529 dev
= iface
->l3_dev
.dev
;
531 if (!node_new
|| !node_old
)
532 iface
->updated
|= IUF_ADDRESS
;
535 a_new
= container_of(node_new
, struct device_addr
, node
);
537 if ((a_new
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
&&
540 /* /31 and /32 addressing need 255.255.255.255
541 * as broadcast address. */
542 if (a_new
->mask
>= 31) {
543 a_new
->broadcast
= (uint32_t) ~0;
546 uint32_t *a
= (uint32_t *) &a_new
->addr
;
548 mask
>>= a_new
->mask
;
549 a_new
->broadcast
= *a
| htonl(mask
);
555 a_old
= container_of(node_old
, struct device_addr
, node
);
557 if (a_new
&& a_old
) {
560 if (a_old
->flags
!= a_new
->flags
|| a_old
->failed
)
563 if (a_old
->valid_until
!= a_new
->valid_until
||
564 a_old
->preferred_until
!= a_new
->preferred_until
)
567 if (((a_new
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET4
) &&
568 (a_new
->broadcast
!= a_old
->broadcast
||
569 a_new
->point_to_point
!= a_old
->point_to_point
))
574 if (a_old
->enabled
&& !keep
) {
575 //This is needed for source routing to work correctly. If a device
576 //has two connections to a network using the same subnet, adding
577 //only the network-rule will cause packets to be routed through the
578 //first matching network (source IP matches both masks).
579 if (a_old
->policy_table
)
580 interface_add_addr_rules(a_old
, false);
582 if (!(a_old
->flags
& DEVADDR_EXTERNAL
)) {
583 interface_handle_subnet_route(iface
, a_old
, false);
584 system_del_address(dev
, a_old
);
592 a_new
->enabled
= true;
594 if ((a_new
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
)
597 a_new
->policy_table
= (v6
) ? iface
->ip6table
: iface
->ip4table
;
599 if (!keep
|| replace
) {
600 if (!(a_new
->flags
& DEVADDR_EXTERNAL
)) {
601 if (system_add_address(dev
, a_new
))
602 a_new
->failed
= true;
604 if (iface
->metric
|| a_new
->policy_table
)
605 interface_handle_subnet_route(iface
, a_new
, true);
609 if (a_new
->policy_table
)
610 interface_add_addr_rules(a_new
, true);
617 enable_route(struct interface_ip_settings
*ip
, struct device_route
*route
)
619 if (ip
->no_defaultroute
&& !route
->mask
)
626 interface_update_proto_route(struct vlist_tree
*tree
,
627 struct vlist_node
*node_new
,
628 struct vlist_node
*node_old
)
630 struct interface_ip_settings
*ip
;
631 struct interface
*iface
;
633 struct device_route
*route_old
, *route_new
;
636 ip
= container_of(tree
, struct interface_ip_settings
, route
);
638 dev
= iface
->l3_dev
.dev
;
640 if (!node_new
|| !node_old
)
641 iface
->updated
|= IUF_ROUTE
;
643 route_old
= container_of(node_old
, struct device_route
, node
);
644 route_new
= container_of(node_new
, struct device_route
, node
);
646 if (node_old
&& node_new
)
647 keep
= !memcmp(&route_old
->nexthop
, &route_new
->nexthop
, sizeof(route_old
->nexthop
)) &&
648 (route_old
->mtu
== route_new
->mtu
) && (route_old
->type
== route_new
->type
) &&
649 (route_old
->proto
== route_new
->proto
) && !route_old
->failed
;
652 if (!(route_old
->flags
& DEVADDR_EXTERNAL
) && route_old
->enabled
&& !keep
)
653 system_del_route(dev
, route_old
);
659 bool _enabled
= enable_route(ip
, route_new
);
661 if (!(route_new
->flags
& DEVADDR_EXTERNAL
) && !keep
&& _enabled
)
662 if (system_add_route(dev
, route_new
))
663 route_new
->failed
= true;
665 route_new
->iface
= iface
;
666 route_new
->enabled
= _enabled
;
671 interface_update_host_route(struct vlist_tree
*tree
,
672 struct vlist_node
*node_new
,
673 struct vlist_node
*node_old
)
675 struct interface
*iface
;
677 struct device_route
*route_old
, *route_new
;
679 iface
= container_of(tree
, struct interface
, host_routes
);
680 dev
= iface
->l3_dev
.dev
;
682 route_old
= container_of(node_old
, struct device_route
, node
);
683 route_new
= container_of(node_new
, struct device_route
, node
);
686 system_del_route(dev
, route_old
);
691 if (system_add_route(dev
, route_new
))
692 route_new
->failed
= true;
697 random_ifaceid(struct in6_addr
*addr
)
699 static bool initialized
= false;
704 gettimeofday(&t
, NULL
);
705 seed
= t
.tv_sec
^ t
.tv_usec
^ getpid();
709 addr
->s6_addr32
[2] = (uint32_t)mrand48();
710 addr
->s6_addr32
[3] = (uint32_t)mrand48();
714 eui64_ifaceid(struct interface
*iface
, struct in6_addr
*addr
)
716 struct device_settings st
;
718 device_merge_settings(iface
->l3_dev
.dev
, &st
);
720 if (!(st
.flags
& DEV_OPT_MACADDR
))
723 /* get mac address */
724 uint8_t *macaddr
= iface
->l3_dev
.dev
->settings
.macaddr
;
725 uint8_t *ifaceid
= addr
->s6_addr
+ 8;
726 memcpy(ifaceid
,macaddr
,3);
727 memcpy(ifaceid
+ 5,macaddr
+ 3, 3);
736 generate_ifaceid(struct interface
*iface
, struct in6_addr
*addr
)
740 /* generate new iface id */
741 switch (iface
->assignment_iface_id_selection
) {
744 /* copy host part from assignment_fixed_iface_id */
745 memcpy(addr
->s6_addr
+ 8, iface
->assignment_fixed_iface_id
.s6_addr
+ 8, 8);
748 /* randomize last 64 bits */
749 random_ifaceid(addr
);
753 ret
= eui64_ifaceid(iface
, addr
);
763 interface_set_prefix_address(struct device_prefix_assignment
*assignment
,
764 const struct device_prefix
*prefix
, struct interface
*iface
, bool add
)
766 const struct interface
*uplink
= prefix
->iface
;
767 if (!iface
->l3_dev
.dev
)
770 struct device
*l3_downlink
= iface
->l3_dev
.dev
;
772 struct device_addr addr
;
773 struct device_route route
;
774 memset(&addr
, 0, sizeof(addr
));
775 memset(&route
, 0, sizeof(route
));
777 addr
.addr
.in6
= assignment
->addr
;
778 addr
.mask
= assignment
->length
;
779 addr
.flags
= DEVADDR_INET6
| DEVADDR_OFFLINK
;
780 addr
.preferred_until
= prefix
->preferred_until
;
781 addr
.valid_until
= prefix
->valid_until
;
783 route
.flags
= DEVADDR_INET6
;
784 route
.mask
= addr
.mask
< 64 ? 64 : addr
.mask
;
785 route
.addr
= addr
.addr
;
787 if (!add
&& assignment
->enabled
) {
788 time_t now
= system_get_rtime();
790 addr
.preferred_until
= now
;
791 if (!addr
.valid_until
|| addr
.valid_until
- now
> 7200)
792 addr
.valid_until
= now
+ 7200;
795 set_ip_source_policy(false, true, IPRULE_PRIORITY_ADDR_MASK
, &addr
.addr
,
796 addr
.mask
< 64 ? 64 : addr
.mask
, iface
->ip6table
, NULL
, NULL
, false);
799 if (prefix
->iface
->ip6table
)
800 set_ip_source_policy(false, true, IPRULE_PRIORITY_NW
, &addr
.addr
,
801 addr
.mask
, prefix
->iface
->ip6table
, iface
, NULL
, true);
803 set_ip_source_policy(false, true, IPRULE_PRIORITY_REJECT
, &addr
.addr
,
804 addr
.mask
, 0, iface
, "unreachable", true);
807 clear_if_addr(&route
.addr
, route
.mask
);
808 interface_set_route_info(iface
, &route
);
810 system_del_route(l3_downlink
, &route
);
811 system_add_address(l3_downlink
, &addr
);
813 assignment
->addr
= in6addr_any
;
814 assignment
->enabled
= false;
815 } else if (add
&& (iface
->state
== IFS_UP
|| iface
->state
== IFS_SETUP
)) {
816 if (IN6_IS_ADDR_UNSPECIFIED(&addr
.addr
.in6
)) {
817 addr
.addr
.in6
= prefix
->addr
;
818 addr
.addr
.in6
.s6_addr32
[1] |= htonl(assignment
->assigned
);
819 if (!generate_ifaceid(iface
, &addr
.addr
.in6
))
822 assignment
->addr
= addr
.addr
.in6
;
823 route
.addr
= addr
.addr
;
826 if (system_add_address(l3_downlink
, &addr
))
829 if (!assignment
->enabled
) {
831 set_ip_source_policy(true, true, IPRULE_PRIORITY_ADDR_MASK
, &addr
.addr
,
832 addr
.mask
< 64 ? 64 : addr
.mask
, iface
->ip6table
, NULL
, NULL
, false);
835 set_ip_source_policy(true, true, IPRULE_PRIORITY_REJECT
, &addr
.addr
,
836 addr
.mask
, 0, iface
, "unreachable", true);
838 if (prefix
->iface
->ip6table
)
839 set_ip_source_policy(true, true, IPRULE_PRIORITY_NW
, &addr
.addr
,
840 addr
.mask
, prefix
->iface
->ip6table
, iface
, NULL
, true);
844 clear_if_addr(&route
.addr
, route
.mask
);
845 interface_set_route_info(iface
, &route
);
847 system_add_route(l3_downlink
, &route
);
849 if (uplink
&& uplink
->l3_dev
.dev
&& !(l3_downlink
->settings
.flags
& DEV_OPT_MTU6
)) {
850 int mtu
= system_update_ipv6_mtu(uplink
->l3_dev
.dev
, 0);
851 int mtu_old
= system_update_ipv6_mtu(l3_downlink
, 0);
853 if (mtu
> 0 && mtu_old
> mtu
)
854 system_update_ipv6_mtu(l3_downlink
, mtu
);
857 assignment
->enabled
= true;
861 static bool interface_prefix_assign(struct list_head
*list
,
862 struct device_prefix_assignment
*assign
)
864 int32_t current
= 0, asize
= (1 << (64 - assign
->length
)) - 1;
865 struct device_prefix_assignment
*c
;
866 list_for_each_entry(c
, list
, head
) {
867 if (assign
->assigned
!= -1) {
868 if (assign
->assigned
>= current
&& assign
->assigned
+ asize
< c
->assigned
) {
869 list_add_tail(&assign
->head
, &c
->head
);
872 } else if (assign
->assigned
== -1) {
873 current
= (current
+ asize
) & (~asize
);
874 if (current
+ asize
< c
->assigned
) {
875 assign
->assigned
= current
;
876 list_add_tail(&assign
->head
, &c
->head
);
880 current
= (c
->assigned
+ (1 << (64 - c
->length
)));
886 * Sorting of assignment entries:
887 * Primary on assignment length: smallest assignment first
888 * Secondary on assignment weight: highest weight first
889 * Finally alphabetical order of interface names
891 static int prefix_assignment_cmp(const void *k1
, const void *k2
, void *ptr
)
893 const struct device_prefix_assignment
*a1
= k1
, *a2
= k2
;
895 if (a1
->length
!= a2
->length
)
896 return a1
->length
- a2
->length
;
898 if (a1
->weight
!= a2
->weight
)
899 return a2
->weight
- a1
->weight
;
901 return strcmp(a1
->name
, a2
->name
);
904 static void interface_update_prefix_assignments(struct device_prefix
*prefix
, bool setup
)
906 struct device_prefix_assignment
*c
;
907 struct interface
*iface
;
909 // Delete all assignments
910 while (!list_empty(&prefix
->assignments
)) {
911 c
= list_first_entry(&prefix
->assignments
,
912 struct device_prefix_assignment
, head
);
913 if ((iface
= vlist_find(&interfaces
, c
->name
, iface
, node
)))
914 interface_set_prefix_address(c
, prefix
, iface
, false);
922 // End-of-assignment sentinel
923 c
= malloc(sizeof(*c
) + 1);
927 c
->assigned
= 1 << (64 - prefix
->length
);
930 c
->addr
= in6addr_any
;
931 list_add(&c
->head
, &prefix
->assignments
);
934 if (prefix
->excl_length
> 0) {
935 const char name
[] = "!excluded";
936 c
= malloc(sizeof(*c
) + sizeof(name
));
938 c
->assigned
= ntohl(prefix
->excl_addr
.s6_addr32
[1]) &
939 ((1 << (64 - prefix
->length
)) - 1);
940 c
->length
= prefix
->excl_length
;
941 c
->addr
= in6addr_any
;
942 memcpy(c
->name
, name
, sizeof(name
));
943 list_add(&c
->head
, &prefix
->assignments
);
947 bool assigned_any
= false;
949 struct avl_node node
;
951 struct avl_tree assign_later
;
953 avl_init(&assign_later
, prefix_assignment_cmp
, false, NULL
);
955 vlist_for_each_element(&interfaces
, iface
, node
) {
956 if (iface
->assignment_length
< 48 ||
957 iface
->assignment_length
> 64)
960 // Test whether there is a matching class
961 if (!list_empty(&iface
->assignment_classes
)) {
964 struct interface_assignment_class
*c
;
965 list_for_each_entry(c
, &iface
->assignment_classes
, head
) {
966 if (!strcmp(c
->name
, prefix
->pclass
)) {
976 size_t namelen
= strlen(iface
->name
) + 1;
977 c
= malloc(sizeof(*c
) + namelen
);
981 c
->length
= iface
->assignment_length
;
982 c
->assigned
= iface
->assignment_hint
;
983 c
->weight
= iface
->assignment_weight
;
984 c
->addr
= in6addr_any
;
986 memcpy(c
->name
, iface
->name
, namelen
);
988 // First process all custom assignments, put all others in later-list
989 if (c
->assigned
== -1 || !interface_prefix_assign(&prefix
->assignments
, c
)) {
990 if (c
->assigned
!= -1) {
992 netifd_log_message(L_WARNING
, "Failed to assign requested subprefix "
993 "of size %hhu for %s, trying other\n", c
->length
, c
->name
);
996 entry
= calloc(1, sizeof(*entry
));
1002 entry
->node
.key
= c
;
1003 avl_insert(&assign_later
, &entry
->node
);
1006 if (c
->assigned
!= -1)
1007 assigned_any
= true;
1010 /* Then try to assign all other + failed custom assignments */
1011 avl_for_each_element_safe(&assign_later
, entry
, node
, n_entry
) {
1012 bool assigned
= false;
1014 c
= (struct device_prefix_assignment
*)entry
->node
.key
;
1015 avl_delete(&assign_later
, &entry
->node
);
1018 assigned
= interface_prefix_assign(&prefix
->assignments
, c
);
1019 } while (!assigned
&& ++c
->length
<= 64);
1022 netifd_log_message(L_WARNING
, "Failed to assign subprefix "
1023 "of size %hhu for %s\n", c
->length
, c
->name
);
1026 assigned_any
= true;
1031 list_for_each_entry(c
, &prefix
->assignments
, head
)
1032 if ((iface
= vlist_find(&interfaces
, c
->name
, iface
, node
)))
1033 interface_set_prefix_address(c
, prefix
, iface
, true);
1036 netifd_log_message(L_WARNING
, "You have delegated IPv6-prefixes but haven't assigned them "
1037 "to any interface. Did you forget to set option ip6assign on your lan-interfaces?");
1041 void interface_refresh_assignments(bool hint
)
1043 static bool refresh
= false;
1044 if (!hint
&& refresh
) {
1045 struct device_prefix
*p
;
1046 list_for_each_entry(p
, &prefixes
, head
)
1047 interface_update_prefix_assignments(p
, true);
1054 interface_update_prefix(struct vlist_tree
*tree
,
1055 struct vlist_node
*node_new
,
1056 struct vlist_node
*node_old
)
1058 struct device_prefix
*prefix_old
, *prefix_new
;
1059 prefix_old
= container_of(node_old
, struct device_prefix
, node
);
1060 prefix_new
= container_of(node_new
, struct device_prefix
, node
);
1062 struct interface_ip_settings
*ip
= container_of(tree
, struct interface_ip_settings
, prefix
);
1063 if (tree
&& (!node_new
|| !node_old
))
1064 ip
->iface
->updated
|= IUF_PREFIX
;
1066 struct device_route route
;
1067 memset(&route
, 0, sizeof(route
));
1068 route
.flags
= DEVADDR_INET6
;
1069 route
.metric
= INT32_MAX
;
1070 route
.mask
= (node_new
) ? prefix_new
->length
: prefix_old
->length
;
1071 route
.addr
.in6
= (node_new
) ? prefix_new
->addr
: prefix_old
->addr
;
1074 struct device_prefix_assignment
*c
;
1075 struct interface
*iface
;
1077 if (node_old
&& node_new
) {
1078 // Move assignments and refresh addresses to update valid times
1079 list_splice(&prefix_old
->assignments
, &prefix_new
->assignments
);
1081 list_for_each_entry(c
, &prefix_new
->assignments
, head
)
1082 if ((iface
= vlist_find(&interfaces
, c
->name
, iface
, node
)))
1083 interface_set_prefix_address(c
, prefix_new
, iface
, true);
1085 if (prefix_new
->preferred_until
!= prefix_old
->preferred_until
||
1086 prefix_new
->valid_until
!= prefix_old
->valid_until
)
1087 ip
->iface
->updated
|= IUF_PREFIX
;
1088 } else if (node_new
) {
1089 // Set null-route to avoid routing loops
1090 system_add_route(NULL
, &route
);
1092 if (!prefix_new
->iface
|| !prefix_new
->iface
->proto_ip
.no_delegation
)
1093 interface_update_prefix_assignments(prefix_new
, true);
1094 } else if (node_old
) {
1095 // Remove null-route
1096 interface_update_prefix_assignments(prefix_old
, false);
1097 system_del_route(NULL
, &route
);
1101 if (prefix_old
->head
.next
)
1102 list_del(&prefix_old
->head
);
1106 if (node_new
&& (!prefix_new
->iface
|| !prefix_new
->iface
->proto_ip
.no_delegation
))
1107 list_add(&prefix_new
->head
, &prefixes
);
1111 struct device_prefix
*
1112 interface_ip_add_device_prefix(struct interface
*iface
, struct in6_addr
*addr
,
1113 uint8_t length
, time_t valid_until
, time_t preferred_until
,
1114 struct in6_addr
*excl_addr
, uint8_t excl_length
, const char *pclass
)
1117 pclass
= (iface
) ? iface
->name
: "local";
1119 struct device_prefix
*prefix
= calloc(1, sizeof(*prefix
) + strlen(pclass
) + 1);
1123 prefix
->length
= length
;
1124 prefix
->addr
= *addr
;
1125 prefix
->preferred_until
= preferred_until
;
1126 prefix
->valid_until
= valid_until
;
1127 prefix
->iface
= iface
;
1128 INIT_LIST_HEAD(&prefix
->assignments
);
1131 prefix
->excl_addr
= *excl_addr
;
1132 prefix
->excl_length
= excl_length
;
1135 strcpy(prefix
->pclass
, pclass
);
1138 vlist_add(&iface
->proto_ip
.prefix
, &prefix
->node
, &prefix
->addr
);
1140 interface_update_prefix(NULL
, &prefix
->node
, NULL
);
1146 interface_ip_set_ula_prefix(const char *prefix
)
1148 char buf
[INET6_ADDRSTRLEN
+ 4] = {0}, *saveptr
;
1150 strncpy(buf
, prefix
, sizeof(buf
) - 1);
1151 char *prefixaddr
= strtok_r(buf
, "/", &saveptr
);
1153 struct in6_addr addr
;
1154 if (!prefixaddr
|| inet_pton(AF_INET6
, prefixaddr
, &addr
) < 1) {
1156 interface_update_prefix(NULL
, NULL
, &ula_prefix
->node
);
1163 char *prefixlen
= strtok_r(NULL
, ",", &saveptr
);
1164 if (!prefixlen
|| (length
= atoi(prefixlen
)) < 1 || length
> 64)
1167 if (!ula_prefix
|| !IN6_ARE_ADDR_EQUAL(&addr
, &ula_prefix
->addr
) ||
1168 ula_prefix
->length
!= length
) {
1170 interface_update_prefix(NULL
, NULL
, &ula_prefix
->node
);
1172 ula_prefix
= interface_ip_add_device_prefix(NULL
, &addr
, length
,
1173 0, 0, NULL
, 0, NULL
);
1178 interface_add_dns_server(struct interface_ip_settings
*ip
, const char *str
)
1180 struct dns_server
*s
;
1182 s
= calloc(1, sizeof(*s
));
1187 if (inet_pton(s
->af
, str
, &s
->addr
.in
))
1191 if (inet_pton(s
->af
, str
, &s
->addr
.in
))
1198 D(INTERFACE
, "Add IPv%c DNS server: %s\n",
1199 s
->af
== AF_INET6
? '6' : '4', str
);
1200 vlist_simple_add(&ip
->dns_servers
, &s
->node
);
1204 interface_add_dns_server_list(struct interface_ip_settings
*ip
, struct blob_attr
*list
)
1206 struct blob_attr
*cur
;
1209 blobmsg_for_each_attr(cur
, list
, rem
) {
1210 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
1213 if (!blobmsg_check_attr(cur
, NULL
))
1216 interface_add_dns_server(ip
, blobmsg_data(cur
));
1221 interface_add_dns_search_domain(struct interface_ip_settings
*ip
, const char *str
)
1223 struct dns_search_domain
*s
;
1224 int len
= strlen(str
);
1226 s
= calloc(1, sizeof(*s
) + len
+ 1);
1230 D(INTERFACE
, "Add DNS search domain: %s\n", str
);
1231 memcpy(s
->name
, str
, len
);
1232 vlist_simple_add(&ip
->dns_search
, &s
->node
);
1236 interface_add_dns_search_list(struct interface_ip_settings
*ip
, struct blob_attr
*list
)
1238 struct blob_attr
*cur
;
1241 blobmsg_for_each_attr(cur
, list
, rem
) {
1242 if (blobmsg_type(cur
) != BLOBMSG_TYPE_STRING
)
1245 if (!blobmsg_check_attr(cur
, NULL
))
1248 interface_add_dns_search_domain(ip
, blobmsg_data(cur
));
1253 write_resolv_conf_entries(FILE *f
, struct interface_ip_settings
*ip
, const char *dev
)
1255 struct dns_server
*s
;
1256 struct dns_search_domain
*d
;
1258 char buf
[INET6_ADDRSTRLEN
];
1260 vlist_simple_for_each_element(&ip
->dns_servers
, s
, node
) {
1261 str
= inet_ntop(s
->af
, &s
->addr
, buf
, sizeof(buf
));
1265 if (s
->af
== AF_INET6
&& IN6_IS_ADDR_LINKLOCAL(&s
->addr
.in6
))
1266 fprintf(f
, "nameserver %s%%%s\n", str
, dev
);
1268 fprintf(f
, "nameserver %s\n", str
);
1271 vlist_simple_for_each_element(&ip
->dns_search
, d
, node
) {
1272 fprintf(f
, "search %s\n", d
->name
);
1276 /* Sorting of interface resolver entries : */
1277 /* Primary on interface dns_metric : lowest metric first */
1278 /* Secondary on interface metric : lowest metric first */
1279 /* Finally alphabetical order of interface names */
1280 static int resolv_conf_iface_cmp(const void *k1
, const void *k2
, void *ptr
)
1282 const struct interface
*iface1
= k1
, *iface2
= k2
;
1284 if (iface1
->dns_metric
!= iface2
->dns_metric
)
1285 return iface1
->dns_metric
- iface2
->dns_metric
;
1287 if (iface1
->metric
!= iface2
->metric
)
1288 return iface1
->metric
- iface2
->metric
;
1290 return strcmp(iface1
->name
, iface2
->name
);
1294 __interface_write_dns_entries(FILE *f
)
1296 struct interface
*iface
;
1298 struct avl_node node
;
1300 struct avl_tree resolv_conf_iface_entries
;
1302 avl_init(&resolv_conf_iface_entries
, resolv_conf_iface_cmp
, false, NULL
);
1304 vlist_for_each_element(&interfaces
, iface
, node
) {
1305 if (iface
->state
!= IFS_UP
)
1308 if (vlist_simple_empty(&iface
->proto_ip
.dns_search
) &&
1309 vlist_simple_empty(&iface
->proto_ip
.dns_servers
) &&
1310 vlist_simple_empty(&iface
->config_ip
.dns_search
) &&
1311 vlist_simple_empty(&iface
->config_ip
.dns_servers
))
1314 entry
= calloc(1, sizeof(*entry
));
1318 entry
->node
.key
= iface
;
1319 avl_insert(&resolv_conf_iface_entries
, &entry
->node
);
1322 avl_for_each_element(&resolv_conf_iface_entries
, entry
, node
) {
1323 iface
= (struct interface
*)entry
->node
.key
;
1324 struct device
*dev
= iface
->l3_dev
.dev
;
1326 fprintf(f
, "# Interface %s\n", iface
->name
);
1328 write_resolv_conf_entries(f
, &iface
->config_ip
, dev
->ifname
);
1330 if (!iface
->proto_ip
.no_dns
)
1331 write_resolv_conf_entries(f
, &iface
->proto_ip
, dev
->ifname
);
1334 avl_remove_all_elements(&resolv_conf_iface_entries
, entry
, node
, n_entry
)
1339 interface_write_resolv_conf(void)
1341 char *path
= alloca(strlen(resolv_conf
) + 5);
1343 uint32_t crcold
, crcnew
;
1345 sprintf(path
, "%s.tmp", resolv_conf
);
1347 f
= fopen(path
, "w+");
1349 D(INTERFACE
, "Failed to open %s for writing\n", path
);
1353 __interface_write_dns_entries(f
);
1357 crcnew
= crc32_file(f
);
1360 crcold
= crcnew
+ 1;
1361 f
= fopen(resolv_conf
, "r");
1363 crcold
= crc32_file(f
);
1367 if (crcold
== crcnew
) {
1369 } else if (rename(path
, resolv_conf
) < 0) {
1370 D(INTERFACE
, "Failed to replace %s\n", resolv_conf
);
1375 void interface_ip_set_enabled(struct interface_ip_settings
*ip
, bool enabled
)
1377 struct device_addr
*addr
;
1378 struct device_route
*route
;
1380 struct interface
*iface
;
1382 ip
->enabled
= enabled
;
1384 dev
= iface
->l3_dev
.dev
;
1388 vlist_for_each_element(&ip
->addr
, addr
, node
) {
1389 bool v6
= ((addr
->flags
& DEVADDR_FAMILY
) == DEVADDR_INET6
) ? true : false;
1391 if (addr
->flags
& DEVADDR_EXTERNAL
)
1394 if (addr
->enabled
== enabled
)
1398 system_add_address(dev
, addr
);
1400 addr
->policy_table
= (v6
) ? iface
->ip6table
: iface
->ip4table
;
1401 if (iface
->metric
|| addr
->policy_table
)
1402 interface_handle_subnet_route(iface
, addr
, true);
1404 if (addr
->policy_table
)
1405 interface_add_addr_rules(addr
, true);
1407 interface_handle_subnet_route(iface
, addr
, false);
1408 system_del_address(dev
, addr
);
1410 if (addr
->policy_table
)
1411 interface_add_addr_rules(addr
, false);
1413 addr
->enabled
= enabled
;
1416 vlist_for_each_element(&ip
->route
, route
, node
) {
1417 bool _enabled
= enabled
;
1419 if (route
->flags
& DEVADDR_EXTERNAL
)
1422 if (!enable_route(ip
, route
))
1425 if (route
->enabled
== _enabled
)
1429 interface_set_route_info(ip
->iface
, route
);
1431 if (system_add_route(dev
, route
))
1432 route
->failed
= true;
1434 system_del_route(dev
, route
);
1435 route
->enabled
= _enabled
;
1438 struct device_prefix
*c
;
1439 struct device_prefix_assignment
*a
;
1440 list_for_each_entry(c
, &prefixes
, head
)
1441 list_for_each_entry(a
, &c
->assignments
, head
)
1442 if (!strcmp(a
->name
, ip
->iface
->name
))
1443 interface_set_prefix_address(a
, c
, ip
->iface
, enabled
);
1445 if (ip
->iface
->policy_rules_set
!= enabled
&&
1446 ip
->iface
->l3_dev
.dev
) {
1447 set_ip_lo_policy(enabled
, true, ip
->iface
);
1448 set_ip_lo_policy(enabled
, false, ip
->iface
);
1450 set_ip_source_policy(enabled
, true, IPRULE_PRIORITY_REJECT
+ ip
->iface
->l3_dev
.dev
->ifindex
,
1451 NULL
, 0, 0, ip
->iface
, "failed_policy", true);
1452 ip
->iface
->policy_rules_set
= enabled
;
1457 interface_ip_update_start(struct interface_ip_settings
*ip
)
1459 if (ip
!= &ip
->iface
->config_ip
) {
1460 vlist_simple_update(&ip
->dns_servers
);
1461 vlist_simple_update(&ip
->dns_search
);
1463 vlist_update(&ip
->route
);
1464 vlist_update(&ip
->addr
);
1465 vlist_update(&ip
->prefix
);
1469 interface_ip_update_complete(struct interface_ip_settings
*ip
)
1471 vlist_simple_flush(&ip
->dns_servers
);
1472 vlist_simple_flush(&ip
->dns_search
);
1473 vlist_flush(&ip
->route
);
1474 vlist_flush(&ip
->addr
);
1475 vlist_flush(&ip
->prefix
);
1476 interface_write_resolv_conf();
1480 interface_ip_flush(struct interface_ip_settings
*ip
)
1482 if (ip
== &ip
->iface
->proto_ip
)
1483 vlist_flush_all(&ip
->iface
->host_routes
);
1484 vlist_simple_flush_all(&ip
->dns_servers
);
1485 vlist_simple_flush_all(&ip
->dns_search
);
1486 vlist_flush_all(&ip
->route
);
1487 vlist_flush_all(&ip
->addr
);
1488 vlist_flush_all(&ip
->prefix
);
1492 __interface_ip_init(struct interface_ip_settings
*ip
, struct interface
*iface
)
1496 vlist_simple_init(&ip
->dns_search
, struct dns_search_domain
, node
);
1497 vlist_simple_init(&ip
->dns_servers
, struct dns_server
, node
);
1498 vlist_init(&ip
->route
, route_cmp
, interface_update_proto_route
);
1499 vlist_init(&ip
->addr
, addr_cmp
, interface_update_proto_addr
);
1500 vlist_init(&ip
->prefix
, prefix_cmp
, interface_update_prefix
);
1504 interface_ip_init(struct interface
*iface
)
1506 __interface_ip_init(&iface
->proto_ip
, iface
);
1507 __interface_ip_init(&iface
->config_ip
, iface
);
1508 vlist_init(&iface
->host_routes
, route_cmp
, interface_update_host_route
);
1512 interface_ip_valid_until_handler(struct uloop_timeout
*t
)
1514 time_t now
= system_get_rtime();
1515 struct interface
*iface
;
1516 vlist_for_each_element(&interfaces
, iface
, node
) {
1517 if (iface
->state
!= IFS_UP
)
1520 struct device_addr
*addr
, *addrp
;
1521 struct device_route
*route
, *routep
;
1522 struct device_prefix
*pref
, *prefp
;
1524 vlist_for_each_element_safe(&iface
->proto_ip
.addr
, addr
, node
, addrp
)
1525 if (addr
->valid_until
&& addr
->valid_until
< now
)
1526 vlist_delete(&iface
->proto_ip
.addr
, &addr
->node
);
1528 vlist_for_each_element_safe(&iface
->proto_ip
.route
, route
, node
, routep
)
1529 if (route
->valid_until
&& route
->valid_until
< now
)
1530 vlist_delete(&iface
->proto_ip
.route
, &route
->node
);
1532 vlist_for_each_element_safe(&iface
->proto_ip
.prefix
, pref
, node
, prefp
)
1533 if (pref
->valid_until
&& pref
->valid_until
< now
)
1534 vlist_delete(&iface
->proto_ip
.prefix
, &pref
->node
);
1538 uloop_timeout_set(t
, 1000);
1542 interface_ip_init_worker(void)
1544 valid_until_timeout
.cb
= interface_ip_valid_until_handler
;
1545 uloop_timeout_set(&valid_until_timeout
, 1000);